I was thinking about reestablishing my inventory in BS as well. I have the same problem remembering to remove inventory after a brew session or not remembering if I have already done it.
The software should have something that tells you whether you have removed the items from inventory already or not. That would be very helpful. I "try" to move my completed brews to a separate folder and remove the items from inventory at the same time but I am rarely successful.
I agree it would be nice if there was a "flag" indicating if inventory had been issued or not. One of the very last notations I make on my "Brew Notes" is the date that I "Removed Inventory". If there is no note, I know I still need to.